Leveling-machine.



No.-693,0|6. Patentad Feb; ll, I902.

J. .J. HEYS.

LEVELING MACHINE.

(Application fllad Nov; 21, 1901.)

2 Sheets-Sheet 2.

(No Model.)

Zbifizeas e5 1 uoams Pe ms ca. FHOYQ-LITH UNITED STATES PATENT OFFICE.

JOHN J. HEYS, OF LYNN, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO MAURICE V. BRESNAHAN, OF LYNN, MASSACHUSETTS.

MACHINE.

SPECIFICATION forming part of Letters Patent N0. 693,016, dated February 11, 1902. Application filed November 21, 1901. Serial No. 83,184- (No model.)

To all whom it may concern.-

Be it known that I, JOHN J. HEYS, of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Leveling-Machines, of which the following is a specification.

This invention has for its object to provide certain improvements in the machine illustrated and described in Letters Patent No. 684,239, granted to me October 8, 1901; and it consists in certain features of construction and arrangement of parts, as illustrated upon the accompanying drawings, described in the following specification, and pointed out in the appended claims.

Referring to the accompanying drawings, Figure 1 shows a portion of a levelingnachine equipped with myimprovements. Fig. 2 represents a section on the line 2 2 of Fig. 1 looking in the direction of the arrow. Fig. 3 represents a longitudinal section.

The machine to which my present improvements are applied is shown as awhole in the Letters Patent hereinbefore referred to and need not be described in detail.

a indicates a portion of the standard, in which is journaled the rotary shaft f, driven by any suitable means. To said shaft is rigidly secured the disk f connected by rods f with a worm-Wheel, (not shown,") likewise secured to the shaft, as in said patented machine.

f represents a cam having the concentric portion f and the path f. Said cam is secured to the frame, whereby it is held against rotation as the shaft f rotates.

s 3 represent jack-tables pivoted at s to the disk f each table having provisions for the reception of a jack or last 8 Secured t0 the shaft f there is a collar m, having radial pins or guides 'm', arranged-to project under each jacketable. On each of the pins or guides is a sliding sleeve m having a laterally-projecting pin m and roller m in operative engagement with the cam f. This cam is'so formed that as the shaft frotates one sleeve will be forced inward away from the end of its supporting-pin by the portion f, while the other sleeves will be forced outward toward the ends of their supportingpins by the portion f of said cam. To each sleeve is pivoted the inner yoke-like ends at of curved links or connecting-rods a by means of studs or pintles n gthe outer ends of said links or rods being pivoted by pintles n to ears or lugs 02 on the jack-tables s s. From this do scription it will be observed that as the sleeves m are moved inward and outward on the radial guides the jack-tables are swung about their pivots toward or away from the shaft f, as indicated by dotted lines in Fig. 3, to a position for pressure and a position of clearance, respectively.

I am enabled to secure several advantages from the construction described,among which may be noted the ease of removing broken connections between the jack-tables and the cam and supplying duplicate parts, the simplification of the mechanism, and the location of the said mechanism outside or in front of the diskf when they are readily accessible.

Having thus explained the nature of the invention and described a way of constructing and using the same, although without attempting to set forth all of the forms in which it may be made or all of the modes of its use, I declare that what I claim is- 1. In a leveling-machine, a rotary carrier, a plurality of jack-tables pivoted thereto, a stationary cam, a plurality of radial guides rotating with said carriers, sleeves movable on said guides and having projections for operatively engaging said cam, and connections between said sleeves and said jack-tables.

2. In a leveling-machine, a rotary carrier, a plurality of jack-tables pivoted thereto, a stationary cam, a plurality of radial pins, a sleeve slidably mounted on each pin, and having a projection to operatively engage said cam, and a link pivoted to each sleeve and to one of the jack-tables.

3. A leveling-machine having a rotary carrier, a jack-table pivoted thereon, a radial guide rotating with said carrier, a sleeve sliding on said pin and having a laterally-projecting pin, a link pivotally connected to said sleeve and to the j ack-table, and a stationary cam having the concentric portion, as at f and the cam-path as at f In testimony whereof I have aflixed my signature in presence of two witnesses.

JOHN J. HEYS.

Witnesses:

M. ,3. MAY,' GEORGE PEZZETTI. 

